#ifndef common_h
#define common_h

#define THISMAX(a, b) (((a) > (b)) ? (a) : (b))
#define THISMIN(a, b) (((a) < (b)) ? (a) : (b))


#define THISCLAMP(x, low, high) (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))

#endif 
